A powerful storm system will bring several life-threatening weather hazards to Tennessee starting Wednesday night, including the threat of flash flooding and tornados, warns the National Weather Service.

A powerful storm system will bring several life-threatening weather hazards to Tennessee starting Wednesday night, including the threat of flash flooding and tornados, warns the National Weather Service.

Storms have entered our region and will continue tracking east throughout the evening hours. A portion of the area was earlier upgraded to a High Level 5 out of 5 risk of severe weather, meaning confidence has increased even more in which we will see widespread and potentially significant severe weather.

Another round of strong storms moved through the Chicago area Wednesday afternoon. There was a Tornado Warning for part of northwest Indiana, which has since expired.

On Wednesday at 6:30 p.m. an updated tornado warning was issued by the National Weather Service in effect until 7 p.m. for the Madison Area and Columbia County.

The potent storm system will bring “significant, life-threatening flash flooding” each day through Saturday, the National Weather Service said.

A once-in-a generation extreme weather event is beginning Wednesday with a tornado outbreak and will continue into the weekend with dangerous, life-threatening flooding.

As thunderstorms threatened to hit parts of the Midwest and South, forecasters warned of flash flooding and tornadoes.

Forecasters issued some of their rarest and most extreme alerts on Wednesday as they warned a powerful storm system would stall over the central part of the country.

There is a high risk for a nocturnal tornado outbreak in the South tonight. Very large hail and damaging wind gusts are forecast as residents plan for a noisy night of severe thunderstorms.

Several radar confirmed tornadoes were reported in parts of Missouri and Oklahoma on Wednesday morning. A rare Level 5 out of 5 'high risk' of severe weather issued covering parts of six states. A tornado outbreak is expected Wednesday and Wednesday night from parts of the lower Mississippi Valley into the mid-South and lower Ohio Valley,